Film Cooling Optimization Using Numerical Computation of the Compressible Viscous Flow Equations and Simplex Algorithm
Joint Authors
Owis, Farouk M.
Abdel Rahman, M. Madbouli
Elsayed, Ahmed M.
Source
International Journal of Aerospace Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-24, 24 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-24
Country of Publication
Egypt
No. of Pages
24
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Film cooling is vital to gas turbine blades to protect them from high temperatures and hence high thermal stresses.
In the current work, optimization of film cooling parameters on a flat plate is investigated numerically.
The effect of film cooling parameters such as inlet velocity direction, lateral and forward diffusion angles, blowing ratio, and streamwise angle on the cooling effectiveness is studied, and optimum cooling parameters are selected.
The numerical simulation of the coolant flow through flat plate hole system is carried out using the “CFDRC package” coupled with the optimization algorithm “simplex” to maximize overall film cooling effectiveness.
Unstructured finite volume technique is used to solve the steady, three-dimensional and compressible Navier-Stokes equations.
The results are compared with the published numerical and experimental data of a cylindrically round-simple hole, and the results show good agreement.
In addition, the results indicate that the average overall film cooling effectiveness is enhanced by decreasing the streamwise angle for high blowing ratio and by increasing the lateral and forward diffusion angles.
Optimum geometry of the cooling hole on a flat plate is determined.
In addition, numerical simulations of film cooling on actual turbine blade are performed using the flat plate optimal hole geometry.
American Psychological Association (APA)
Elsayed, Ahmed M.& Owis, Farouk M.& Abdel Rahman, M. Madbouli. 2013. Film Cooling Optimization Using Numerical Computation of the Compressible Viscous Flow Equations and Simplex Algorithm. International Journal of Aerospace Engineering،Vol. 2013, no. 2013, pp.1-24.
https://search.emarefa.net/detail/BIM-504005
Modern Language Association (MLA)
Elsayed, Ahmed M.…[et al.]. Film Cooling Optimization Using Numerical Computation of the Compressible Viscous Flow Equations and Simplex Algorithm. International Journal of Aerospace Engineering No. 2013 (2013), pp.1-24.
https://search.emarefa.net/detail/BIM-504005
American Medical Association (AMA)
Elsayed, Ahmed M.& Owis, Farouk M.& Abdel Rahman, M. Madbouli. Film Cooling Optimization Using Numerical Computation of the Compressible Viscous Flow Equations and Simplex Algorithm. International Journal of Aerospace Engineering. 2013. Vol. 2013, no. 2013, pp.1-24.
https://search.emarefa.net/detail/BIM-504005
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-504005